Refractive errors By Dr. Khalil Al-Salem Refractive errors definitions Refractive errors lecture is intended to teach medical students important tips on Myopia, Hyperopia , astigmatism, and treatment regimes like glasses, contact lenses and refractive surgery. In the Emmetropic (normally refracted) eye, entering light rays are focused on the retina by the cornea and the lens, creating a … تابع قراءة Refractive errors lecture for medical students